7122520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 16964640

約数和(自身を除く): 9842120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 43, 82, 86, 101, 164, 172, 202, 205, 215, 328, 344, 404, 410, 430, 505, 808, 820, 860, 1010, 1640, 1720, 1763, 2020, 3526, 4040, 4141, 4343, 7052, 8282, 8686, 8815, 14104, 16564, 17372, 17630, 20705, 21715, 33128, 34744, 35260, 41410, 43430, 70520, 82820, 86860, 165640, 173720, 178063, 356126, 712252, 890315, 1424504, 1780630, 3561260, 7122520]

約数ペア:

[(1, 7122520), (2, 3561260), (4, 1780630), (5, 1424504), (8, 890315), (10, 712252), (20, 356126), (40, 178063), (41, 173720), (43, 165640), (82, 86860), (86, 82820), (101, 70520), (164, 43430), (172, 41410), (202, 35260), (205, 34744), (215, 33128), (328, 21715), (344, 20705), (404, 17630), (410, 17372), (430, 16564), (505, 14104), (808, 8815), (820, 8686), (860, 8282), (1010, 7052), (1640, 4343), (1720, 4141), (1763, 4040), (2020, 3526)]